Improvement in looms



UNITED STATES PATENT OFFICE.

BARTON H. JENKS, OF BRIDESBURG, PENNSYLVANIA.

IMPROVEMENT IN LOOMS.

Specication forming part ofLetters Patent No'. 38,489, dated May l2, 1863; antedated December 1,4, 1861.

To all whom it mag/concern- Be it known that I, BARTON H. JENKs, of Bridesburg, county of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements in Power-Looms for Weaving Plaids 5 and I do hereby declare that the following is a full, clear, and exact description ofthe construction and operation of the same, reference being had to the annexed drawings, making a part of this specication, in which- Figure l is a view of the oscillating cam C. Fig. 2 is a view of the tumblerf. Fig. 3 is a view of the patternwheel H. Fig. 4 is a view of the lever D. Fig. 5 is a view of the yoke B. Fig. 6 is a view of the end of the loom having the box-motion attached to it, showing all the parts thereof. y

Similar letters of reference indicate correspondin g parts in the several figures.

I will now describe the construction and arrangement ot' the parts, that others may be able to make and ope ate the same.

A represents the end of the loom-frame. B represents a yoke supported on thecamshaft I and the stud P, to which a traversing motion is communicated by the cam E on the shaft I, which works between the lugs o c on the yoke B. (More plainly shown in Fig. 5.) D is a small lever, to which motion is communicated by lug r r. (Seen in Fig. 5.) C is an oscillating cam hung on the stud P, to which motion is communicated through tumblerf by yoke B and lever D. F is a lever through which the movements are transmitted to the box, which is connected at the end J. G is a lever through which the movements of the tumbler f are controlled by the-pattern-wheel H, the tumbler being connected by the rod R.

K is a catch or pawl through which motion Said yoke imparts to lever D its move ments, causing the catch d (seen in- Fig. 4) on the end of said lever to move or traverse in opposite directions to the catch e on the yoke B. Catches e and d give an oscillating movement to cam C, through the tumblerf, which is connected to said cam by a small pin or pivot, which allows said tumbler to be raised or lowered, thereby bringing catches a a a a on tumbler f in contact with catches d on lever D, and catch c on yoke B, at proper intervals or spaces of time, hereinafter described. The oscillating cam G has steps l 2 3, which operate on shoe a on lever F, thereby communicatin gto itthe required motion for raising and depressing' the boxes, which are connected to the lever F at J in the ordinary manner. The pattern-wheel H receives 'a rotary motion from yoke B through the catch or pawl K. S, Fig. 3, is a fair representation of the pins used in the pattern-wheel, having one side beveled at an angle ot' forty-tive degrees. The pins in the pattern-wheel may be set in twopositions, with the bevel to the right or left, as may be seen in the drawings. These pins act on the lever G at n, imparting to it three distinct movements, which movements are governed by the relative position of the pins, or by each pin separately, as follows, the wheel being divided into eight parts, each part being represented by a tooth in the ratchetwheel: Supposing the wheel to be in position as shown in the drawings, the pin No. 1, with the bevel to the right, will place the tumbler f in the position as shown in the drawings, and out of contact with the catches e and d, allowing the box to remain in the position it was placed by the previous movement ot' the patternwheel. The next movement will bring pin No. 2, which will raise lever G at n to top of the pins, thereby depressing the tumbler f and bringing the catches a and d in contact, thereby raising the box to its highest position. By moving the wheel to pin No. 3, the bevel to the right, it will act as pin No. 1, the box remaining in the position placed by pin No.2. Moving the wheel to pin N o. 4 will raise the lever G and depress tumbler f but, in consequence of its motion to the right being spent, it keeps the box in position given it by pin No. 2. In the next movement, there bein g :no pin, the lever G will drop at n, raising tumbler f in contact With the catch e and dropping the box one shuttle. Pin No. 5 raises lever G and depresses tumblerf, which again raises the box one shuttle. The next movement ofthe Wheel,tl1ere being no pin, will cause the box to drop one shuttle, and the next will cause it to drop one more, and should the piuNo. l now be removed, the boxes will remain in the same position, from the fact ot' the motion of the tumblerfto the left being spent. The tumbler fhas four distinct movements, two right and two left', these movements bring sufcient for three boxes. These movements may be increased or diminished to suit the number of boxes that may be desirable to apply' to the loom. By increasing the number of notches a a a e ou the tumbler f the lever G at n should be made heavy enough to counterbalance the rod R and tumblerf. The ltver G, through rod R, raises or depresses the t imbler j', thereby bringing notches a a t a i'i contact with the catch c on yoke B and catih .fl ou lever D at proper intervals, causing the oscillating cam G to act on the lever in the manner necessary to produce the movements of the shuttle-boxes to produce a given pattern.

This improvement may be so modified as to place the oscillating cam O on the stud which the lay of the loom oscillates, and connecting the shoe a.v direct to the lifting-rod of the box; or, ifit be desirable, a chain may be substituted for the patterlrwheel.

Having thus described my invention', what Y BARTON H. JENKS.

Witnesses:

PHILIP LERCH. Jr., WlLLIAM DoBsoN. 

